NFS50-7608J

Embedded Power for Business-Critical Continuity 

Rev.02.16.07 NFS50_7608J 1 of 4 

## **NFS50_7608J** Triple output 

**Total Power: 50 - 60W Input Voltage: 85 - 264VAC 120 - 370VDC # of Outputs: Triple** 

## Special Features 

- 6.3 x 3.94 x 1.5 inch package 

- (1U applications) 

- Overvoltage and short circuit protection 

- 50W with free air convection cooling 

- Regulation to no load 

- Isolated output option 

- EN55022, EN55011 conducted emissions level A 

- UL, VDE and CSA safety approvals 

- NFS50 Medical IEC601 approved 

- Available RoHS compliant 

- 2 year warranty 

## Safety 

The NFS50 series is a 50W universal input AC/DC power supply on a 6.3 x 3.94 inch card with a maximum component height of 1.5 inches for use in 1U applications. The NFS50 series can regulate on the auxiliary outputs down to no load making it suitable for applications that require a heavy logic load on the main 5V output and low nominal loads with high peak capability for drives, relays or switches on the auxiliary outputs.  The NFS50 provides 50W of output power with free air convection cooling which can be boosted to 60W with 20CFM of air. Standard features include overvoltage and short circuit protection. The series, with full international safety approval and the CE mark, meets conducted emissions EN55022 level A.  The NFS50 series is designed for use in low power data networking, computer, telecom and industrial applications such as POS terminals, servers, PABX's, industrial PC's and process automation. 

VDE0805/EN60950/ IEC950/IEC1010 File No. 10401-3336-1036 Licence No 1485 and 1650 

UL1950 File No. E136005 

CSA C22.2 No. 950 File No. LR41062C 

Embedded Power for Business-Critical Continuity 

Rev.02.16.07 NFS50_7608J 2 of 4 

## **Specifications** 

All specifications are typical at nominal input, full load at 25°C unless otherwise stated 

## **OUTPUT SPECIFICATIONS** 

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**----- Start of picture text -----**<br>
||||
|---|---|---|
|Voltage adjustability|+5V output|±3%|
|+12V tracks the 5V output|
|Line regulation|LL to HL at max. load|±0.3%|
|Total regulation|Main output (output 1)|±2.5%|
|All other outputs|±5.0%|
|(See Notes 5, 6)|
|Overshoot/undershoot|At turn-on|0%|
|Transient response|5V (2.5A to 5A)|500mV max. dev.|
|500μs recovery to 0.5%|
|12V (1A to 2A)|300mV max. dev.|
|500μs recovery to 0.5%|
|Temperature coefficient|All outputs|±0.03%/°C, max.|
|Overvoltage protection|+5V output|6.25V ±0.65V|
|Output power limit|Primary power|90W Pin max.|
|limited|60W Pout min.|
|Short circuit protection|Yes, with auto-restart|
|INPUT SPECIFICATIONS|
|Input voltage range|Universal input|85 to 264VAC|
|120 to 370VDC|
|Input frequency range|47 to 440Hz|
|Input surge current|110VAC, cold start|10A, max.|
|230VAC, cold start|20A max.|
|Safety ground|132VAC, 60Hz|0.2mA, max.|
|leakage current|264VAC, 50Hz|0.4mA, max.|
|EMC CHARACTERISTICS|
|Conducted emissions|EN55022, FCC part 15|Level A|
|Radiated emissions|EN55022, FCC part 15|Level A|
|ESD air|EN61000-4-2, level 3|Perf. criteria 1|

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## **EMC CHARACTERISTICS** 

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||||
|---|---|---|
|ESD contact|EN61000-4-2, level 4|Perf. criteria 1|
|Surge|EN61000-4-5, level 3|Perf. criteria 1|
|Fast transients|EN61000-4-4, level 3|Perf. criteria 2|
|Radiated immunity|EN61000-4-3, level 3|Perf. criteria 2|
|Conducted immunity|EN61000-4-6, level 3|Perf. criteria 2|
|GENERAL SPECIFICATIONS|
|Hold-up time|110VAC, 50W output power|16ms|
|230VAC, 50W output power|100ms|
|Efficiency|70%, typ.|
|Isolation voltage|Input/output|3000VAC|
|Input/chassis|1500VAC|
|Switching frequency|Variable|25kHz to 250kHz|
|Approvals and|VDE0805, EN60950, IEC950|
|standards|IEC1010, CSA C22.2 No. 950|
|Weight|400g (14oz)|
|MTBF (See Note 7)|MIL-HDBK-217E, 25°C|160,000 hours|
|ENVIRONMENTAL SPECIFICATIONS|
|Thermal performance|Operating range|0°C to +70°C|
|(See derating curve)|
|Non-operating|–40°C to +85°C|
|0°C to 50°C ambient temp.,|50W|
|Convection cooled|
|0°C to 50°C ambient,|60W|
|Forced air @ 20 CFM|
|50°C to 70°C ambient|Derate linearly|
|to 50% load|
|Peak (30 seconds)|60W|
|Relative humidity|Non-condensing|5% to 95% RH|
|Altitude|Operating|10,000 feet max.|
|Non-operating|30,000 feet max.|
|Vibration (See Note 9)|5Hz to 500Hz|2.4G rms (approx)|

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Embedded Power for Business-Critical Continuity 

Rev.02.16.07 NFS50_7608J 3 of 4 

## **Specifications Contd.** 

|**OUTPUT**<br>**VOLTAGE**|**OUTPUT CURRENTS**|**OUTPUT CURRENTS**|**OUTPUT CURRENTS**|**RIPPLE (4)**|**TOTAL**<br>**REGULATION(5,6)**|**MODEL**<br>**NUMBER(12)**|
|---|---|---|---|---|---|---|
||**MAX(1)**|**PEAK (2)**|**FAN (3)**||||
|+5.1V (I1)(6)|5.0A|7.0A|7.0A|50mV|±2.5%|NFS50-7608J|
|+12.0V (I2)|2.0A|5.0A|2.5A|120mV|±5.0%||
|-12.0V|0.5A|1.0A|0.7A|120mV|±5.0%||



## Notes 

- 1 Convection cooled, maximum 50W output power. 

- 2 Peak outputs lasting less than 30 seconds with duty factor less than 10%. During peak loading output may go outside total regulation limits.  Maximum output during peak loading is 60 Watts. 

- 3 Forced air, 20 CFM at 1 atmosphere. 

- 4 Figure is peak-to-peak. Output noise measurements are across a 50MHz bandwidth made using a 12” twisted pair, terminated with a 47μF capacitor. 

- 5 Total regulation is defined as the static output regulation at 25°C, including initial tolerance, line voltage within stated limits and output voltages adjusted to their factory settings. Also, for stated I(2) regulation: I(1)/I(2)≤5. 

- 6 A minimum load of 0.5 Amps is required on the +5.1V output to obtain full current from the -12V output. 

- 7 Derating curve is application specific for ambient temperatures > 50°C, for optimum reliability no part of the heatsink should exceed 110[o] C and no semiconductor case temperature should exceed 115[o] C. 

|PIN CONNECTIONS|PIN CONNECTIONS|
|---|---|
|J1|NFS50-7608J|
|Pin 1|AC Line|
|Pin 2|AC Neutral|
|J2,J3,J4||
|Pin 1|-12V|
|Pin 2|+12V|
|Pin 3|Return|
|Pin 4|+5.1V|
|E1||
|Pin 1|Ground|



- 8 Caution: Allow a minimum of 1 second after disconnecting the power when making thermal measurements. 

- 9 Three orthogonal axes, random vibration, ten minute test for each axis. 10 A 5 Watt minimum load is recommended to achieve design MTBF. 

- 11 This product is only for inclusion by professional installers within other equipment and must not be operated as a stand alone product. 

- 12 The ‘J’ suffix indicates that these parts are Pb-free (RoHS 6/6) compliant.  TSE RoHS 5/6 (non Pb-free) compliant versions may be available on special request, please contact your local sales representative for details. 

## AC mating connector 

Molex 09-50-3031 or equivalent with Molex 08-50-0105 or equivalent crimp terminal. 

## DC mating connector 

Molex 22-01-1043 or equivalent with Molex 08-50-0031 or equivalent crimp terminal. 

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DERATING CURVE<br>Output Power (Watts)<br>60W<br>20 CFM FORCED AIR COOLING<br>50W<br>NATURAL 30W<br>CONVECTION<br>COOLING 25W<br>5W MINIMUM LOAD REQUIRED TO ACHIEVE DESIGN MTBF<br>0 ° C     10 ° C      20 ° C      30 ° C      40 ° C      50 ° C      60 ° C       70 ° C<br>**----- End of picture text -----**<br>


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6 0.156 (3.96) Dia. 4 Places ot-<br>PIN1<br>MAX HEIGHT 38.1mm<br>J2 PIN1<br>OUTPUTADJUST J3 (80.0)3.15 (100.1)3.94<br>J1 J4 LS E1 PIN1<br>2<br>1<br>& le | |<br>4.80<br>(121.9) 0.40<br>pr 6.30 et (19.0)0.75  (10.2)<br>(160.0)<br>ALL DIMENSIONS ARE IN INCHES  (mm)<br>Maximum component height is 1.5 (38.1)<br>**----- End of picture text -----**<br>


Embedded Power for Business-Critical Continuity 

Rev.02.16.07 NFS50_7608J 4 of 4 

## **Americas** 

5810 Van Allen Way Carlsbad, CA 92008 USA 

Telephone: +1 760 930 4600 Facsimile: +1 760 930 0698 

## **Europe (UK)** 

Waterfront Business Park Merry Hill, Dudley West Midlands, DY5 1LX United Kingdom Telephone: +44 (0) 1384 842 211 Facsimile: +44 (0) 1384 843 355 

## **Asia (HK)** 

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For global contact, visit: 

## **www.powerconversion.com technicalsupport@powerconversion.com** 

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